.container {
  width: 90%;
}

iframe {
  margin-top: 10px;
  margin-bottom: 10px;
  width: 49%;
  float: left;
  height: 300px;
  border: 1px solid black;
  border-left: 0px;
}     

/* Visualization styling */

.node circle {
  cursor: pointer;
  fill: #fff;
  stroke: steelblue;
  stroke-width: 1.5px;
}

.node text {
  font-size: 11px;
}

path.link {
  fill: none;
  stroke: #ccc;
  stroke-width: 1.5px;
}

